Patents by Inventor Maruthi Narasinga Rao Devarakonda
Maruthi Narasinga Rao Devarakonda has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10883435Abstract: A method for diagnosing a waste gate valve malfunction in a power generation system is presented. The method includes determining an actual pressure differential across a throttle valve. The method further includes determining an estimated pressure differential across the throttle valve based on one or more first operating parameters of the power generation system. Furthermore, the method includes determining an absolute difference between the actual pressure differential and the estimated pressure differential. Moreover, the method also includes comparing the absolute difference with a threshold value and if the absolute difference is greater than the threshold value, determining an operating condition of the throttle valve. Additionally, the method includes determining whether the waste gate valve has malfunctioned based on the determined operating condition of the throttle valve. An engine controller and a power generation system employing the method are also presented.Type: GrantFiled: August 20, 2019Date of Patent: January 5, 2021Assignee: AI ALPINE US BIDCO INCInventors: Dipankar Deb, Sharath Sridhar Aramanekoppa, Prashant Srinivasan, Maruthi Narasinga Rao Devarakonda
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Patent number: 10789657Abstract: A tangible, non-transitory computer readable medium includes computer instructions stored thereon, the computer instructions, when executed by a processor, cause the processor to retrieve model inputs indicative of mechanical systems data, economic data, contractual data, regulatory data, or any combination thereof, associated with at least one compression system. Furthermore, the instructions cause the processor to retrieve a model that derives an operation schedule for the at least one compression system based on the model inputs. Then the instructions cause the processor to derive an operation schedule for the at least one compression system based on the model inputs and the model, and apply the operation schedule to the at least one gas compression system.Type: GrantFiled: September 18, 2017Date of Patent: September 29, 2020Assignee: INNIO Jenbacher GmbH & Co OGInventors: Maruthi Narasinga Rao Devarakonda, Aaron Avagliano, Trevor James Kirsten, James Richard Zurlo, Douglas Alan Kiesling
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Publication number: 20200049093Abstract: A method for diagnosing a waste gate valve malfunction in a power generation system is presented. The method includes determining an actual pressure differential across a throttle valve. The method further includes determining an estimated pressure differential across the throttle valve based on one or more first operating parameters of the power generation system. Furthermore, the method includes determining an absolute difference between the actual pressure differential and the estimated pressure differential. Moreover, the method also includes comparing the absolute difference with a threshold value and if the absolute difference is greater than the threshold value, determining an operating condition of the throttle valve. Additionally, the method includes determining whether the waste gate valve has malfunctioned based on the determined operating condition of the throttle valve. An engine controller and a power generation system employing the method are also presented.Type: ApplicationFiled: August 20, 2019Publication date: February 13, 2020Inventors: Dipankar Deb, Sharath Sridhar ARAMANEKOPPA, Prashant SRINIVASAN, Maruthi Narasinga Rao DEVARAKONDA
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Patent number: 10526947Abstract: The present application provides an aftertreatment system for treating an exhaust stream of an engine. The aftertreatment system may include a selective catalyst reduction system positioned downstream of the engine, a secondary catalyst positioned downstream of the selective catalyst reduction system, a first gas sensor positioned between the engine and the selective catalyst reduction system, a second gas sensor positioned between the selective catalyst reduction system and the secondary catalyst, and a third gas sensor positioned downstream of the secondary catalyst.Type: GrantFiled: April 12, 2018Date of Patent: January 7, 2020Assignee: AI ALPINE US BIDCO INCInventors: Maruthi Narasinga Rao Devarakonda, Srinivas Kandasamy, Michael Url, Herbert Kopecek
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Publication number: 20190316506Abstract: The present application provides an aftertreatment system for treating an exhaust stream of an engine. The aftertreatment system may include a selective catalyst reduction system positioned downstream of the engine, a secondary catalyst positioned downstream of the selective catalyst reduction system, a first gas sensor positioned between the engine and the selective catalyst reduction system, a second gas sensor positioned between the selective catalyst reduction system and the secondary catalyst, and a third gas sensor positioned downstream of the secondary catalyst.Type: ApplicationFiled: April 12, 2018Publication date: October 17, 2019Inventors: Maruthi Narasinga Rao DEVARAKONDA, Srinivas KANDASAMY, Michael URL, Herbert KOPECEK
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Patent number: 10385794Abstract: A method for diagnosing a waste gate valve malfunction in a power generation system is presented. The method includes determining an actual pressure differential across a throttle valve. The method further includes determining an estimated pressure differential across the throttle valve based on one or more first operating parameters of the power generation system. Furthermore, the method includes determining an absolute difference between the actual pressure differential and the estimated pressure differential. Moreover, the method also includes comparing the absolute difference with a threshold value and if the absolute difference is greater than the threshold value, determining an operating condition of the throttle valve. Additionally, the method includes determining whether the waste gate valve has malfunctioned based on the determined operating condition of the throttle valve. An engine controller and a power generation system employing the method are also presented.Type: GrantFiled: September 22, 2016Date of Patent: August 20, 2019Assignee: AI Alpine US Bidco Inc.Inventors: Dipankar Deb, Sharath Sridhar Aramanekoppa, Prashant Srinivasan, Maruthi Narasinga Rao Devarakonda
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Publication number: 20190093540Abstract: A system includes an aftertreatment system configured to treat emissions from an engine via a catalyst and a controller. The controller is configured to obtain one or more engine signals representative of operations of the engine and to execute a model to derive an estimated catalyst emission based on the one or more engine signals and on an expected catalyst degradation. The controller is further configured to obtain one or more catalyst signals representative of catalyst performance, and to generate an adaptation signal configured to improve accuracy of the model based on the one or more catalyst signals. The controller is also configured to apply the adaptation signal and the estimated catalyst emission to generate an engine control signal.Type: ApplicationFiled: September 27, 2017Publication date: March 28, 2019Inventors: Maruthi Narasinga Rao Devarakonda, Monika Jonuskeviciute
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Publication number: 20190093535Abstract: A system includes an aftertreatment system configured to treat emissions from an engine via a catalyst and a controller. The controller is configured to obtain one or more engine signals representative of operations of the engine and to execute a model to derive an estimated catalyst emission based on the one or more engine signals and on an expected catalyst degradation. The controller is further configured to obtain one or more catalyst signals representative of catalyst performance, and to generate an adaptation signal configured to improve accuracy of the model based on the one or more catalyst signals. The controller is also configured to apply the adaptation signal and the estimated catalyst emission to generate a urea injection control signal.Type: ApplicationFiled: September 27, 2017Publication date: March 28, 2019Inventors: Maruthi Narasinga Rao Devarakonda, Monika Jonuskeviciute
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Publication number: 20190087917Abstract: A tangible, non-transitory computer readable medium includes computer instructions stored thereon, the computer instructions, when executed by a processor, cause the processor to retrieve model inputs indicative of mechanical systems data, economic data, contractual data, regulatory data, or any combination thereof, associated with at least one compression system. Furthermore, the instructions cause the processor to retrieve a model that derives an operation schedule for the at least one compression system based on the model inputs. Then the instructions cause the processor to derive an operation schedule for the at least one compression system based on the model inputs and the model, and apply the operation schedule to the at least one gas compression system.Type: ApplicationFiled: September 18, 2017Publication date: March 21, 2019Inventors: Maruthi Narasinga Rao Devarakonda, Aaron Avagliano, Trevor James Kirsten, James Richard Zurlo, Douglas Alan Kiesling
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Patent number: 10094275Abstract: A system includes a hybrid power plant controller programmed to receive a plurality of signals representative of one or more operating parameters of a hybrid power plant. The hybrid power plant includes at least one gas turbine engine, at least one gas engine, and at least one catalyst system. The hybrid power plant controller is programmed to utilize closed-loop optimal control to generate one or more operational setpoints based on the one or more operating parameters for the hybrid power plant to optimize performance of the hybrid power plant. The hybrid power plant controller uses closed-loop optimal control to provide the one or more operational setpoints to respective controllers of the at least one gas turbine engine, the at least one gas engine, and the at least one catalyst system to control operation of the gas turbine engine, the gas engine, and the catalyst system.Type: GrantFiled: January 26, 2016Date of Patent: October 9, 2018Assignee: GENERAL ELECTRIC COMPANYInventors: Maruthi Narasinga Rao Devarakonda, Rachel Tarvin Farr
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Patent number: 10082060Abstract: In one embodiment, a system may include a gas turbine system. the gas turbine system includes a gas turbine, an after-treatment system that may receive exhaust gases from the gas turbine system, and a controller that may receive inputs and model operational behavior of an industrial plant based on the inputs. The industrial plant may include the gas turbine and the after-treatment system. The controller may also determine one or more operational parameter setpoints for the industrial plant, select the one or more operational parameter setpoints that reduce an output of a cost function, and apply the one or more operational parameter setpoints to control the industrial plant.Type: GrantFiled: December 17, 2015Date of Patent: September 25, 2018Assignee: General Electric CompanyInventors: Maruthi Narasinga Rao Devarakonda, Rachel Tarvin Farr, Sahika Genc
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Patent number: 10001046Abstract: A system includes an exhaust treatment system configured to treat emissions from a combustion engine via a catalyst. The system includes a controller configured to obtain an operating parameter indicating catalyst performance. The controller is configured to determine a deterioration factor indicating deterioration of the catalyst based at least in part on the operating parameter. The controller is configured to determine an adaptation term configured to modify a reductant injection command for the combustion engine to account for the deterioration factor of the catalyst. The controller is configured to generate a signal indicating the adaptation term.Type: GrantFiled: November 16, 2015Date of Patent: June 19, 2018Assignee: GENERAL ELECTRIC COMPANYInventors: Prashant Srinivasan, William Collins Vining, Maruthi Narasinga Rao Devarakonda
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Patent number: 9890723Abstract: A system includes an exhaust treatment system configured to treat emissions from a combustion engine via a catalyst. The system includes a controller configured to obtain an operating parameter indicating catalyst performance. The controller is configured to determine a deterioration factor indicating deterioration of the catalyst based at least in part on the operating parameter. The controller is configured to determine an adaptation term configured to modify an air-fuel ratio command for the combustion engine to account for the deterioration.Type: GrantFiled: November 16, 2015Date of Patent: February 13, 2018Assignee: General Electric CompanyInventors: Prashant Srinivasan, William Collins Vining, Maruthi Narasinga Rao Devarakonda
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Patent number: 9863344Abstract: A system includes an engine comprising an EGR valve that recirculates a portion of exhaust gas, a data repository that stores a first look up and one or more engine operational parameters, an engine control unit operationally coupled to the engine and the data repository, wherein the engine control unit is configured to: determine a desired EGR flow rate reference of the portion of the exhaust gas based on the one or more engine operational parameters and the first look up table, determine a current estimated EGR flow rate based on the one or more engine operational parameters, determine a designated corrected EGR flow rate reference based on the desired EGR flow rate reference and a delta EGR flow rate, determine EGR flow rate error, and determine a percentage opening of the EGR valve based at least on the EGR flow rate error.Type: GrantFiled: June 22, 2015Date of Patent: January 9, 2018Assignee: General Electric CompanyInventors: Dipankar Deb, Prashant Srinivasan, Medy Satria, Maruthi Narasinga Rao Devarakonda, Dhruval Bhatt
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Patent number: 9719400Abstract: A system, includes an emissions reduction system, including a catalyst system comprising an oxidation catalyst assembly and a selective catalytic reduction catalyst assembly. The system includes a diesel particulate fuel assembly, a first and a second sensor upstream of the catalyst system configured to measure emissions of the exhaust flow of the gas engine and a gas turbine before flowing into the catalyst system to generate a first and a second signal. A third sensor is downstream of the catalyst system to measure emissions of the catalyst system to generate a third signal, and a fourth and a fifth sensor disposed upstream and downstream of the DPF assembly to measure a change in pressure to generate a fourth signal and a controller to generate a first control signal to control an amount of reductant based on at least the first, second, and third signals.Type: GrantFiled: December 22, 2015Date of Patent: August 1, 2017Assignee: GENERAL ELECTRIC COMPANYInventors: Maruthi Narasinga Rao Devarakonda, Constantin Dinu
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Publication number: 20170211468Abstract: A system includes a hybrid power plant controller programmed to receive a plurality of signals representative of one or more operating parameters of a hybrid power plant. The hybrid power plant includes at least one gas turbine engine, at least one gas engine, and at least one catalyst system. The hybrid power plant controller is programmed to utilize closed-loop optimal control to generate one or more operational setpoints based on the one or more operating parameters for the hybrid power plant to optimize performance of the hybrid power plant. The hybrid power plant controller uses closed-loop optimal control to provide the one or more operational setpoints to respective controllers of the at least one gas turbine engine, the at least one gas engine, and the at least one catalyst system to control operation of the gas turbine engine, the gas engine, and the catalyst system.Type: ApplicationFiled: January 26, 2016Publication date: July 27, 2017Inventors: Maruthi Narasinga Rao Devarakonda, Rachel Tarvin Farr
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Publication number: 20170175645Abstract: In one embodiment, a system may include a gas turbine system. the gas turbine system includes a gas turbine, an after-treatment system that may receive exhaust gases from the gas turbine system, and a controller that may receive inputs and model operational behavior of an industrial plant based on the inputs. The industrial plant may include the gas turbine and the after-treatment system. The controller may also determine one or more operational parameter setpoints for the industrial plant, select the one or more operational parameter setpoints that reduce an output of a cost function, and apply the one or more operational parameter setpoints to control the industrial plant.Type: ApplicationFiled: December 17, 2015Publication date: June 22, 2017Inventors: Maruthi Narasinga Rao Devarakonda, Rachel Tarvin Farr, Sahika Genc
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Publication number: 20170175610Abstract: A system, includes an emissions reduction system, including a catalyst system comprising an oxidation catalyst assembly and a selective catalytic reduction catalyst assembly. The system includes a diesel particulate fuel assembly, a first and a second sensor upstream of the catalyst system configured to measure emissions of the exhaust flow of the gas engine and a gas turbine before flowing into the catalyst system to generate a first and a second signal. A third sensor is downstream of the catalyst system to measure emissions of the catalyst system to generate a third signal, and a fourth and a fifth sensor disposed upstream and downstream of the DPF assembly to measure a change in pressure to generate a fourth signal and a controller to generate a first control signal to control an amount of reductant based on at least the first, second, and third signals.Type: ApplicationFiled: December 22, 2015Publication date: June 22, 2017Inventors: Maruthi Narasinga Rao Devarakonda, Constantin Dinu
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Publication number: 20170175604Abstract: A system includes a nitrous oxide (NOx) conversion system configured to treat emissions from a conversion system, and includes a selective catalytic reduction (SCR) catalyst assembly and a temperature sensor disposed upstream of the SCR catalyst assembly to measure temperature of an exhaust before flowing into the SCR catalyst assembly. The NOx conversion system includes a temperature sensor downstream of the SCR catalyst assembly to measure a temperature of a treated exhaust flow after exiting the SCR catalyst assembly and a controller coupled to the SCR catalyst assembly. The controller receives signals representative of the temperatures to generate a first control signal representative of a desired temperature to heat the exhaust to. The controller receives the first control signal to output a second control signal to regulate a temperature of the exhaust upstream of the SCR catalyst assembly via a heating system.Type: ApplicationFiled: December 22, 2015Publication date: June 22, 2017Inventors: Maruthi Narasinga Rao Devarakonda, Michael Url, Constantin Dinu
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Publication number: 20170138244Abstract: A system includes an exhaust treatment system configured to treat emissions from a combustion engine via a catalyst. The system includes a controller configured to obtain an operating parameter indicating catalyst performance. The controller is configured to determine a deterioration factor indicating deterioration of the catalyst based at least in part on the operating parameter. The controller is configured to determine an adaptation term configured to modify a reductant injection command for the combustion engine to account for the deterioration factor of the catalyst. The controller is configured to generate a signal indicating the adaptation term.Type: ApplicationFiled: November 16, 2015Publication date: May 18, 2017Inventors: Prashant Srinivasan, William Collins Vining, Maruthi Narasinga Rao Devarakonda